
Thanks! This is what I was looking for.
Apparently, it is not supported then it should be as "integral", but in the pdf version appears the integral symbol.

Regards,

Javier.

> Date: Wed, 18 May 2011 09:39:28 -0400
> From: murdoch.duncan@gmail.com
> To: havyhidalgo@hotmail.com
> CC: r-help@r-project.org; ligges@statistik.tu-dortmund.de
> Subject: Re: [R] Integral Symbol
> 
> On 18/05/2011 9:09 AM, Javi Hidalgo wrote:
> > Thanks.
> > I was exactly reading the manual Writing R Extensions, on section Mathematics. Where, it informs about basic LaTeX style support.
> > However, It seems like it does not support the LaTeX integral symbol \int, but it does support i.e.: the summation symbol \sum.
> >
> > Has anyone had this experience on documenting R packages?
> 
> It appears in the topic shown by ?Special, "Special Functions of 
> Mathematics," but only in the LaTeX version.  You can see that in the 
> PDF version of the Reference Manual, or (if you have things set up 
> correctly), by saying
> 
> options(help_type="pdf")
> ?Special
> 
> I don't know of any examples where someone has shown an integral sign in 
> text or html versions.  It's not a symbol supported by the R help 
> system, it would depend on hand coding the right thing.
> 
> Duncan Murdoch
> 
> 
> > Does anyone know any R-package where the integral symbol appear in the help files.
> >
> > Regards,
> >
> > Javier Hidalgo Carrio
> >
> >
> > >  Date: Wed, 18 May 2011 13:14:54 +0200
> > >  From: ligges@statistik.tu-dortmund.de
> > >  To: havyhidalgo@hotmail.com
> > >  CC: r-help@r-project.org
> > >  Subject: Re: [R]  Integral Symbol
> > >
> > >  See the section on writing Mathematics in Rd file in the manual Writing
> > >  R Extensions. This will show how to produce high quality formulas in
> > >  LaTeX generated output and ASCII versions otherwise.
> > >  If you want to provide an excellent HTML version as well, the section on
> > >  "Conditional text" is also worth reading.
> > >
> > >  Uwe Ligges
> > >
> > >
> > >  On 18.05.2011 10:55, Javi Hidalgo wrote:
> > >  >
> > >  >  Dear All,
> > >  >
> > >  >  I am documenting a R package. That means writing the *.Rd files inside the \man folder of the package structure
> > >  >  I was wondering how to write the symbol for an integral function in a formula.
> > >  >  Similar to this one in LaTeX:
> > >  >
> > >  >  \int_{0}^{10} \Omega(t)dt
> > >  >
> > >  >  I already tried
> > >  >
> > >  >  \deqn{\int_{0}^{10} \Omega(t)dt}
> > >  >
> > >  >  but it does not work. Any idea? Which math symbols does R-help recognise?
> > >  >
> > >  >  Regards,
> > >  >
> > >  >  Javier Hidalgo Carrio
> > >  >    		 	   		
> > >  >  	[[alternative HTML version deleted]]
> > >  >
> > >  >  ______________________________________________
> > >  >  R-help@r-project.org mailing list
> > >  >  https://stat.ethz.ch/mailman/listinfo/r-help
> > >  >  PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > >  >  and provide commented, minimal, self-contained, reproducible code.
> >   		 	   		
> > 	[[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> 
 		 	   		  
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